Nozzle



Feb@ 2s, 192s. y 1,660,557

D. D. HEIMBURGER F NOZZLE April ll. 1927 Patented Feb. 28, A

UNITED STATES PATENT oF'Flc-E.

DOUGLAS D. HEIMBURGER, F ST. LOUIS, MISSOURI, ASSIGNIRA T0 MABQUETTE MANUFACTURING COMPANY.

NOZZLE.

Applicationled April 11, 1927. Serial No. 182,599.

This invention relates to nozzles, and an object is to provide a nozzle for obtaining the mixture of air and water in desired proportions, and for ejecting the mixture.

Another object of the invention is to provide an improved device for mixing, and eject-ing the mixture of, air and water comprising a nozzle constituting a mixing chamber, a chamber for receiving water from source of supply Afor admission into the mixing chamber, and an air inlet nozzle extending into one end of the mixing chamber element toward the reduced inlet through which the air and water pass to the mixing chamber, and means for adjusting the parts to obtain variation in the proportions of the air and Water.

Other objects of the invention will appear from 'the following description, referl0 ence being made to the accompanying drawing in which Fig. 1 is a plan view of my improved nozzle. Fig. Fig. Fig. nozzle.

The embodiment of the invention shown comprises a water receiving chamber 1 having an inlet `opening 2 for attachment to one end of a` hose connection 3, whereby water may be admitted into the chamber 1. The opening 2 is near one side of the chamber 1, and extending` oppositel therefrom, $5 near the opposite side of the c amber 1, is a tubular extension 4 threaded-interiorly and exteriorly. A nozzle element 5 formin a mixing chamber for the air and water has one end screwed into the extension 4, the joint being rendered impervious by a sealmg device 6 screwed onto the extension 4. The outer end of the nozzle mixing chamber element 5 has a nozzle tip 7 screwed into it and provided with a hole 8 of considerably less diameter than the internal diameter of the part 5, which hole 8 is ared at its inner end as indicated at 9 and at its outer end as indicated at 10. This tip constitutes a choke, so that the mixture of air and water discharged from the device will be sprayed.

l Near the inner end ofthe mixing chamber .5 is a plug 11 having ahole 12 therethrough flaring at its ends, as clearly shown in Fig. 3. An air jet nozzle 13 is screwed into one 2 a side elevation. 3 is a longitudinal sectional view. 4 is an outer end elevation of the various uses, and assumin wall ofthe water chamber 1 and extends entirely across said chamber and into the end of the nozzle mixing chamber element A5 and into the iared portion of the hole 12 .through the lug 11. This nozzle 13 is 60 spaced from t e walls of the hole 12 and from the part 5, leaving a space entirely around the nozzlel for the passage of air from the chamber 1 into the mixing chamber nozzle element 5 through the hole 12. 65

A hose connection 14; is attached to the nozzle 13 for' the admission of air under compression or force. The passage through the nozzle 12 tapers from its outer end toward its inner end. The connection 14 is equipped with a valve 15 having a handle 16 whereby the valve may be opened or closed to an desired extent to Vvary the amount of air in proportion to the water admitted to the device.

This device is capable of application to that hot water' be admitted into the cham er 1 it will surroundand affect the temperature of the air admitted through the nozzle 13, whilethe air discharged through said nozzle 13 will tend to cool the water. The waterpasses from the chamber 1 around the nozzle 13 and is broken up by the air discharged from the end of the nozzle 13 as both the 85 v air and water pass through the ,restricted opening 12 to the mixing chamber element 5. In this way the thorough admixture of the water and air is obtained in the mixing chamber and, by the pressure of both, the mixture is ejected through the` choke nozzle tip 7. J.

The sealing elementA 6 and the nozzle mixing chamber element 5 both are preferably spotted/ or knurled on their exteriors to afford proper grip for the hand for varying the adjustment of the parts. In the use of this device the water entering the chamber 1 through the inlet 2 strikes the inclined wall .of the chamber 1 opposite 100 the inlet 2 and is thereby given a swirling movement. The water completely fills the chamber 1 and surrounds the nozzle 13.

From the chamber 1 the water passes into .the mixing chamber element 5 around the 105 end of the nozzle 13 and passes beyond the end of said nozzle through the reduced passage 12 into the mixing chamber of the part 5 between the element 11 and the nozzle tipp. The ai;` discharged into the device from the nozzle 13 becomes mixed with the water passin through the reduced passage 12 and buil s up pressure in the mixing chamber in the part 5 between the nozzle tip 7 and the part 11. The air andwater are thoroughly mixed and discharged as a spray through the passage 12 with its liarin inner end 9 and flaring outer end 10.

he passageway through the element 11, as also that thru the nozzle tip 7,| is Venturitube shaped. By Venturi-tube shape is denoted a passageway having a cylindrical portion of substantial axial length with flared Walls connected to the cylindrical portion and leading therefrom'in opposite directions. 4

The construction and arrangement of the parts may be varied within Aequivalent limits without departure from the nature and principle of the invention.

I do not restrict myself unessentially, but what I Vclaim and desire to secure by Letters Patent is 1. A device of the character described comprising a Water receiving chamber having an inlet thereto and an outlet therefrom, a discharge nozzle in connection with said outlet, means in said discharge nozzle forming a reduced tapered passage for admittingv Water to said nozzle from said chamber, an exteriorly tapered air nozzle extending yinto said reduced tapered passage, and a Venturi-tube shaped nozzle tip in connection` with the outer end of said discharge nozzle and in alignment with said reduced tapered passage.

2. A device of the character described comprising a water chamber having an inlet passage near one side, 'a discharge nozzle in connection with said chamber out/'of line with "said inlet, an air nozzle extending through said chamber into said discharge nozzle, an element in said discharge nozzle forming a reduced Venturi-tube shaped inlet passage thereto in line with and spaced from said air nozzle and a Venturi-tube shaped outlet from said discharge nozzle.

3. A device of the character described comprising a water chamber, means for admitting water into said chamber, an extension from said chamber, an air nozzle extending through said chamber into said extension, a tubular nozzle in said extension and having at its inlet end a Venturi-tube shaped opening receiving the end of said air nozzle and forming thereby an annular space around the end of said air nozzle and means for holding said tubular nozzle in different adjustments relative to said air` nozzle whereby the size of said annular opening may be varied, and a second Venturi-tube shaped opening for the out-let end 5. A device of the character described,`

comprising a water receiving chamber having an inlet thereto and an outlet therefrom, a discharge nozzle in connection with said outlet, an air nozzle extending into said discharge nozzle, said discharge nozzle having a Venturi-tube shaped inlet opening and a second Venturi-tube shaped opening for the outlet end of said discharge nozzle.

DOUGLAS D. HEIMBURGER." 

